Malignant biliary obstruction due to metastatic non-hepato-pancreato-biliary cancer

Table 2 Relative frequency of pancreatic metastases by modality/procedure

Modality/procedure	Total cases	Renal	Lung	Breast	Stomach	Colon	Sarcoma	Melanoma	Ovary	Thyroid	Esophagus	Lymphoma	Other
CT	192	30%	26%	10%	7%	5%	6%	4%	3%	3%	0%	0%	7%
ERCP	307	1%	3%	4%	27%	38%	0%	2%	2%	0%	2%	1%	20%
EUS-FNA	515	40%	20%	6%	2%	9%	3%	10%	3%	1%	2%	0%	3%
Surgery	399	63%	3%	3%	3%	6%	7%	4%	5%	0%	0%	0%	6%
Autopsy	184	3%	28%	4%	22%	1%	2%	1%	2%	1%	0%	5%	31%
Weighted average1	1597	33%	14%	5%	10%	12%	4%	5%	3%	1%	1%	1%	11%

¹Excludes duplicate data from the same institution during the same period using the same modality. Does not consider possible data duplication across studies of different modalities.

CT: Computed tomography; ERCP: Endoscopic retrograde cholangiopancreatography; EUS-FNA: Endoscopic ultrasound-guided fine-needle aspiration.